Per an interview with Bertil Bernadotte, he is still viewed as a traitor.

Quote:

Originally Posted by LadyFinn

[...]

Victoria said at her speech:
Thank you for the beautiful gift. This magnolia plant may still be small. But it holds great significance as a symbol of the shared history of our two countries.
Cut from the tree that King Oscar II planted here 119 years ago, it is a living link between the past, the present and the future.
I look very much forward to bringing this gift home to my daughter, Princess Estelle, and to help her plant it in the garden of our home.
There, at the Haga palace, it will stand to remind her of her family history and of the long-standing friendship between France and Sweden. (...).
I look forward to the day when I will return. I can’t wait to show this beautiful place to our daughter, Princess Estelle, and her younger brother, Prince Oscar.

[...]

It is nice to see that, 200 years later, the link between the royal Bernadottes and their family's place of origin is flourishing. Perhaps the Crown Princess was motivated to study French in honor of her family history.

The royal family attends today at final event of the 200th jubilee of the Bernadotte dynasty, when the king re-dedicates the statue of King Karl XIV Johan on Slottsbacken at 16.00.

At King Karl XIV Johan's death in 1844 King Oskar I decided that a statue was to be made to the Bernadotte ancestor. The assignment went to sculptor Bengt Erland Fogelberg and the statue was unveiled at Slussen in 1854.
When the King now inaugurates the newly placed statue on Slottsbacken, it has received a new granite base and added inscriptions to mark that the Bernadotte Dynasty has been 200 years on the Swedish throne.H.M. Konungen inviger Karl XIV Johan-statyn på Slottsbacken - Sveriges Kungahus

I wonder whether Jean-Baptiste Bernadotte himself expected his dynasty to remain on the throne for this long ...

Jean-Baptiste Bernadotte aka Carl XIV John was quiet worried about revolution and he had even done some preparations in cause that him has leave the country quickly. So I guess that he would be quiet surprised that his dynasty is still on throne (altough without any power) and monarchy would be quiet popular.

Another thing is how he would react idea that there would be reigning queen. He lived in France where was quiet strict salic law.

Video and photos at court Instagram. At the video also people visiting the Bernadotte Apartments, which are open during the evening. The entry to the Bernadotte Apartments was free this evening. The king opened the gates and welcomed people to the Palace.https://www.instagram.com/p/BrdWGL9lLwM/

Jean Baptiste Bernadottes portrait shows him as a dashing, handsome Field Marshall.
Very much an action man in my view.
Wow 200 years already! A very interesting time/200 years for the Bernadotte descendants.